Degradation of boron-doped Czochralski-grown silicon solar cells

Adey, J.School of Physics, University of Exeter, Exeter, EX4 4QL, United Kingdom (författare)

Validerad; 2004; 20070215 (kani);For erratum, see: Adey, J., Jones, R., Palmer, D. W., Briddon, P. R., & Öberg, S. (2004). Erratum: Degradation of Boron-Doped Czochralski-Grown Silicon Solar Cells [Phys. Rev. Lett., 93, 055504 (2004)]. Physical Review Letters, 93(16), 169904. https://doi.org/10.1103/PhysRevLett.93.169904
The formation mechanism and properties of the boron-oxygen center responsible for the degradation of Czochralski-grown Si(B) solar cells during operation is investigated using density functional calculations. We find that boron traps an oxygen dimer to form a bistable defect with a donor level in the upper half of the band gap. The activation energy for its dissociation is found to be 1.2 eV. The formation of the defect from mobile oxygen dimers, which are shown to migrate by a Bourgoin mechanism under minority carrier injection, has a calculated activation energy of 0.3 eV. These energies and the dependence of the generation rate of the recombination center on boron concentration are in good agreement with observations.

Jones, R.School of Physics, University of Exeter, Exeter, EX4 4QL, United Kingdom (författare)
Palmer, D. W.School of Physics, University of Exeter, Exeter, EX4 4QL, United Kingdom (författare)
Briddon, P. R.Physics Centre, School of Natural Science, Newcastle upon Tyne, NE1 7RU, United Kingdom (författare)
Öberg, SvenLuleå tekniska universitet,Matematiska vetenskaper(Swepub:ltu)oberg (författare)
School of Physics, University of Exeter, Exeter, EX4 4QL, United KingdomPhysics Centre, School of Natural Science, Newcastle upon Tyne, NE1 7RU, United Kingdom (creator_code:org_t)

Av författaren/redakt...: Adey, J.; Jones, R.; Palmer, D. W.; Briddon, P. R.; Öberg, Sven

Om ämnet

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.